Stable high-speed centrifugal air compressor

Abstract

A stable high-speed centrifugal air compressor comprises a shell, a stator and a main shaft, a first-stage bearing seat and a second-stage bearing seat which are used for supporting the main shaft are installed on the inner sides of the two ends of the shell respectively, and a first-stage diffuser and a second-stage diffuser are installed on the outer sides of the two ends of the shell respectively. The two ends of the main shaft penetrate out of the first-stage diffuser and the second-stage diffuser to be provided with a first-stage worm wheel and a second-stage worm wheel respectively. A plurality of locking cushion blocks are arranged between the primary diffuser and the primary bearing seat, the locking cushion blocks are in a cross shape, the left end and the right end of the horizontal portion of each locking cushion block are inserted into a through hole of the primary diffuser and a through hole of the primary bearing seat respectively to be positioned, and the vertical portion of each locking cushion block is arranged between the primary diffuser and the primary bearing seat to be limited. The locking cushion block not only can play a role in positioning, but also can play a role in limiting between the locking cushion block and the locking cushion block, so that the procedure of installing a screw is omitted, the assembly difficulty is reduced, the efficiency is improved, contact, collision, abrasion and product failure caused by loosening of the screw are avoided, and the stability of the product is improved.

Description

Technical field: [0001] The invention relates to a stable high-speed centrifugal air compressor. Background technique: [0002] At present, the development of new energy fuel cell vehicles is considered to be an important link in the transformation of transportation energy and power. In order to ensure the normal operation of fuel cell engines, the engines generally require auxiliary systems such as hydrogen supply subsystem, air supply subsystem and circulating water cooling management subsystem. The research of the research shows that the high-pressure, large-flow air supply has obvious effect on improving the power output of the existing fuel cell engine. Therefore, before the general air enters the engine, the intake air must be pressurized. The centrifugal air compressor is an energy conversion device to achieve this goal, and is one of the important components of the fuel cell engine air supply system. [0003] The structure of the current high-speed centrifugal air c...

AI Technical Summary

Problems solved by technology

[0008] In order to make up for the deficiencies of the existing technology, the present invention provides a stable high-speed centrifugal air compressor, which solves the problem of the previous primary bearing seat and primary diffuser. There is no positioning and limit between the devices, and the problem of difficult installation solves the problems of easy contact, collision, wear and structural instability between the primary bearing seat and the primary diffuser in the past

Images